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The pancreas is a large organ behind the stomach that produces digestive enzymes and a number of hormones. [1] There are two main types, acute pancreatitis and chronic pancreatitis. [1] Signs and symptoms of pancreatitis include pain in the upper abdomen, nausea, and vomiting. [1] The pain often goes into the back and is usually severe. [1]
Histopathologic examination of the pancreas reveals a characteristic lymphoplasmacytic infiltrate of CD4- or CD8-positive lymphocytes and IgG4-positive plasma cells, and exhibits interstitial fibrosis and acinar cell atrophy in later stages. At the initial stages, typically, there is a cuff of lymphoplasma cells surrounding the ducts but also ...
A pancreatic cyst is a fluid filled sac within the pancreas. They can be benign or malignant. X-ray computed tomography (CT scan) findings of cysts in the pancreas are common, and often are benign. In a study of 2,832 patients without pancreatic disease, 73 patients (2.6%) had cysts in the pancreas. [3] About 85% of these patients had a single ...
Acute pancreatitis (AP) is a sudden inflammation of the pancreas.Causes include a gallstone impacted in the common bile duct or the pancreatic duct, heavy alcohol use, systemic disease, trauma, elevated calcium levels, hypertriglyceridemia (with triglycerides usually being very elevated, over 1000 mg/dL), certain medications, hereditary causes and, in children, mumps.
Bile backing up into the pancreatic duct may initiate pancreatitis. [8] The pancreatic duct is generally regarded as abnormally enlarged if being over 3 mm in the head and 2 mm in the body or tail on CT scan. [9] Pancreatic duct or parts of pancreatic duct can be demonstrated on ultrasound in 75 to 85% of people. [10]
Chronic pancreatitis is a long-standing inflammation of the pancreas that alters the organ's normal structure and functions. [1] It can present as episodes of acute inflammation in a previously injured pancreas, or as chronic damage with persistent pain or malabsorption.
Pancreatic pseudocysts are sometimes called false cysts because they do not have an epithelial lining. The wall of the pseudocyst is vascular and fibrotic, encapsulated in the area around the pancreas. Pancreatitis or abdominal trauma can cause its formation. [7] Treatment usually depends on the mechanism that brought about the pseudocyst.
The superior and inferior pancreaticoduodenal arteries run along the back and front surfaces of the head of the pancreas adjacent to the duodenum. These supply the head of the pancreas. These vessels join together in the middle. [7] The body and neck of the pancreas drain into the splenic vein, which sits behind the pancreas. [7]